Structure of sodium tetrahydroxyborate

Abstract

NaB(OH) 4 , M r =101.83, monoclinic, P2 1 /a, a=5.886 (3), b=10.566 6), c=6.146 (3) A, β=111.60 (4) o , V=355.4 (3) A 3 , Z=4, D x =1.903 Mg m -3 , λ(Mo Kα)=0.71069 A, μ=0.27 mm -1 , F(000)=208, room temperature, R=0.030 for 882 observed reflections with I>3σ(I). The structure consists of six-coordinate Na + in cavities in a hydrogen-bonded framework of BO 4 tetrahedra. Only three of the four H atoms of the anions are involved in O-H...O bonding